Writing implement



Ndv. 24, 1942. I B. R. cal-Ass 2,303,042

WRITING IMPLEMENT Filed 001;. 21. 1941 INVENTOR. Bernard 1?. glass,

Patented Nov. 24, 1942 wnrrme murmur Bernard R. Glass, New York, N. Y. Application October 21, 1941 ,'Serl al No. 415,ss1

7 Claims.

The invention herein disclosed relates to writing implements.

Special objects of the invention are to provid an instrument for writing with ink on fabrics and other more or less rough surfaces difllcult to write upon and to provide a device of this nature, which will write without blotting, smoothly and freely on such surfaces, without catching in the fibers of the cloth or the like, and which will be entirely practical in every way.

Other desirable objects and the manner in which the purposes of the invention are attained will appear and are set forth in the following specification, defining and broadly claiming the novel features of the invention.

The drawing accompanying and forming part I Fig. 3 is a cross-sectional detail as on line Fig. 1, the barrel 1, of the implement is shown' as having an elongated ink chamber 8, of cylindrical tubular form and open at the lower end to receive a bushing or sleeve 9, which carries a rod l0, formed at the lower end into a writing nib H.

The nib supporting sleeve 9, may have a friction taper fit in the ink barrel, so as to be firmly held but readily removable therefrom and it is shown ashaving parallel flats l2, cut or otherwise formed in opposite sides of the same to receive a wrench or like tool for loosening it from the barrel.

The nib red It], is removably seated in the sleeve 9, being located and frictionally held in approximately the position indicated in Figs. 1 and 2 by a slightly expanded portion l3, at the lower end of the same, having a taper frictional fit in the end portion of the sleeve.

To conduct the ink in the reservoir down to the nib, a longitudinal groove i4, is milled or otherwise formed in the rod III.

bore of the supporting sleeve.

The nib end of the rod is tapered down to more or less of a point, substantially as indicated at l5, and the point thus formed is flattened down on opposite sides,.-substantially as indicated at l6. This pointed and flattened end portion is rounded at the tip as at I1,.and is slotted longitudinally back into the lower end of the feed groove as indicated at I8.

In addition to providing feed of writing fluid down to the writing point, the slotting of the solid end of the rod has the effect of expanding and enlarging the end portion of the rod at l3, just sufliciently to give-it the desired frictional holding effect in the bore of the sleeve. This slight enlargement also provides a stop to prevent the nib being pushed back too far in the- If desired, a stop shoulder 22, can be left at the inner end of the sleeve to positively prevent the nib rod being pushed in beyond a predetermined point.

To provide a desirable capillary feed action, the separated tips of the nib may be pinched together or toward each other on convergent,

lines, substantially as indicated at I9, in Fig. 6, such construction allowing for making the slot wide enough to carry a thick or heavy ink and providing the desirable capillary feed at the point of writing. Deformation or spreading of the nib points is guarded against by having the split portion fit back into the end of the supp rting sleeve, substantially as indicated in Fig. 2.

With the thick heavy ink used by the pen, there may be a tendency to formation of granules and such ink may actually contain some solid matter. To avoid the possibility of such solid matter choking the feed channel to such an extent as to stop'; flow to the writing point, there is provided in the illustration, a small capillary groove 23, in the bottom of the feed channel l4, leading to the slot l8, in the nib.

An air venting passage is shown extended transversely through the supporting sleeve at 20. The nib rod is placed in the sleeve with the feed groove l4, therein in registry with one or the other end of such vent passage, Figs. 2 and 3.

When not in use, the pen is preferably sealed by a cap or cover 2|, having a taper slip engagement over the sleeve 9, far enough to cover the air vent 20, substantially as indicated in the broken lines in Fig. 1.

Constructed as described, the structure is strong and sturdy. The nib will write smoothly and freely over cloth and other rough surfaces. andwill carry the more or less thick and heavy, quick drying ink, such as required for marking fabrics,

as in use for instance, in marking laundry pieces. Because of the capillary feed, the nib will write in practically any position, though that shown in Fig. 2, or the exact reverse position, with the slot vertical, is probably preierred.

The ink chamber may be filled upon removing the nib carrying sleeve from the end oi the barrel. To prevent the quick drying ink from drying and stopping up the capillary passage, when the pen is put away after use, one or more drops oi the ink may be placed in the'cap beiore engaging the cap in sealing relation over the end oi the stylus. This ink in the cap seals the pen from air which would dry out the ink and by capillary action keeps the pen always ready for instant use.

What is claimed is:

i. A writing implement oi the character disclosed, comprising in combination with an ink barrel, a supporting sleeve removably seated in the end of said ink barrel and a rod removably seated in said sleeve, said rod being iormed at one end into a writing nib, exposed in said seated relation at the end oi said sleeve, said writing nib end of the rod being split back to a point disposed within the sleeve, in the seated position oi said rod, a ieed channel extending from the other end of the rod to said'split portion, sai'drod being a solid rod closely fitting the sleeve and the nib end of the rod being expanded by the splitting of the same sufliciently to make a wedging holding engagement in the sleeve, and said ieed channel being a groove milled longitudinally in one side of said rod extending back from said split and ex panded nib portion of the rod.

2. A writing implement oi the character disclosed, comprising in combination with an ink barrel, a supporting sleeve removably seated in the end of said ink barrel and a rodremovably seated in said sleeve, said rod being a solid rod formed at one end into a writing nib, exposed in said seated relation at the end of said sleeve, said writing nib end of the rod being split back to a point disposed within the sleeve, in the seated position of said rod, a feed channel in one side of said rod extending from the other end of the rod to said split portion, the portions oi the nib separated by the split being pinched together toward the end of the nib to form a slot tapering toward the end to substantially a capillary passage.

3. A writing implement oi the character disclosed, comprising in combination with an ink barrel, a suporting sleeve removably connected with one end of said ink barrel, a rod removably seated in said sleeve and having a ieed groove extending along one side oi the same, said rod having an exposed nib portion at the outer end of said sleeve split back to said ieed groove and the ieed groove having a smaller capillary groove in the bottom of the same.

4. A writing implement oi the character dieclosed, comprising an ink barrel, a writing nib mounted in the end oi said barrel, said nib having a split point and a ieed channel running irom the split point back to the barrel, said ieed channel having a capillary groove in the bottom of the same leading to said split point.

5. A writing implement oi the character disclosed, comprising an ink barrel, a writing nib mounted in the end oi said barrel, said nib having a split point and a ieed channel running from the split point back to the barrel, said ieed channel having a capillary groove in the bottom oi the same leading to said split point, a sleeve engaged in the end of the barrel and providing an enclosing mounting for said nib, said sleeve having an air vent in register with said ieed channel.

6. A writing implement oi the character disclosed, comprising an ink barrel, a writing nib mounted in the end of said barrel, said nib having a split point and a ieed channel running irom the split point back to the bari'el, said ieed channel having a capillary groove in the bottom oi the same leading to said split point, a sleeve engaged in the end of the barrel and providing an enclosing mounting for said nib, said sleeve having an air vent in register with said ieed channel and a cap having an air tight slip engagement over said sleeve in position covering said air vent.

7. A writing implement, comprising an ink barrel and a nib seated in the end oi said barrel and comprising a rod having an exposed end iormed into a writing point and split back to aiiord ink flow to said point, said rod having a ieed channel extending back from said split portion and a capillary groove in the base oi said channel.

BERNARD R. GLASS. 

